Time-setting member for a time indicator

Abstract

During normal use, the time indicator ( 2 ) is driven by a mechanism ( 3 ) controlled by the gear train ( 4 ) of the timepiece. This mechanism is arranged for uncoupling the gear train from the indicator when the time-setting member ( 1 ) is actuated, this action causing the indicator to move forward through a step of one hour. The time-setting member includes a push-button ( 5 ) which actuates a device ( 6 ) that in turn acts on said mechanism ( 3 ).

1. A time-setting member connected to set a time indicator of a timepiece, wherein the indicator is driven during normal use by a mechanism controlled by a gear train of the timepiece, wherein the mechanism is arranged to uncouple the gear train from the indicator when the time-setting member is actuated, and action of the time-setting member causes the indicator to move forward through a step of one hour, wherein the time-setting member includes a push-button disposed to control, via a lever, a rack provided with toothing, wherein, when the push-button undergoes manual pressure, the rack controlled by the push-button actuates a first device that in turn acts on the mechanism to uncouple the gear train from the indicator, wherein the mechanism controlled by the gear train includes a first wheel meshing with the gear train; and a second wheel coupled to the first wheel by a spring device and driven by the first device activated by the push-button when the push-button is actuated to uncouple the first wheel and the second wheel from each other and to move the time indicator forward one step, and wherein the first device includes a sliding wheel provided with toothing, wherein the toothing of the sliding wheel meshes with the second wheel when the push-button is actuated, and the sliding wheel carries a pinion whose toothing meshes with the toothing of the rack controlled by the push-button. 
   
   
     2. The time-setting member connected to set a time indicator of a timepiece according to  claim 1 , wherein the first wheel is forcibly fitted onto a crown that rotates freely on a hub, the crown having a star-wheel provided with as many teeth as the indicator has time divisions, wherein two diametrically opposite spaces of the star-wheel respectively cooperate with two projecting portions of an annular spring surrounding the star-wheel, the spring having two vertically bent portions dipping into two corresponding holes made in a plate forced onto the hub, wherein the second wheel is forcibly fitted onto the hub and the time indicator is driven by the hub. 
   
   
     3. The time-setting member connected to set a time indicator of a timepiece according to  claim 2 , wherein a cam is forcibly fitted onto the hub, and a feeler, located at one end of a rack rubs on the cam, the other end of the rack being provided with a toothing meshing with a pinion onto an arbor of which a retrograde time indicator is fitted. 
   
   
     4. The time-setting member connected to set a time indicator of a timepiece according to  claim 2 , wherein a circular time indicator is fitted onto the hub. 
   
   
     5. The time-setting member connected to set a time indicator of a timepiece member according to  claim 1 , wherein an arbor, carried by the sliding wheel is guided into an oblong hole made in a bridge, the wheel first of all making a movement of translation, then a movement of rotation as soon as the toothing thereof is meshed with the second wheel to move the time indicator move forward one step. 
   
   
     6. The time-setting member connected to set a time indicator of a timepiece according to  claim 5 , wherein a friction spring presses on the sliding wheel to prevent the wheel from rotating when making the movement of translation. 
   
   
     7. The time-setting member connected to set a time indicator of a timepiece according to  claim 1 , wherein the sliding wheel is movable between a first position and a second position, wherein in the first position, the sliding wheel is not contact with the second wheel, and in the second position, the sliding wheel meshes with the second wheel. 
   
   
     8. The time-setting member connected to set a time indicator of a timepiece according to  claim 7 , wherein when the sliding wheel moves from the first position to the second position, the sliding wheel slides toward the second wheel, and then rotates to rotate the second wheel when in the second position.